This reference page explains the key identification and selection details for a Blind Flange 2 Inch Class 600. Use the source data below when checking flange thickness, weight, bolt arrangement, hole diameter, and stud bolt requirements for drafting or piping coordination.
A blind flange has no center bore, so it closes a flanged connection rather than connecting two open pipe bores. It is commonly considered where a line, nozzle, or equipment connection must be isolated, blanked, or retained for future access.
Blind Flange 2″ Class 600
Blind Flange 2″ Class 600 is used to seal the end of a piping system or close off a flange connection in Class 600 service. It is a solid flange without a center bore and is commonly used in industrial piping systems, maintenance isolation points, and future pipeline expansion connections where a higher pressure rating is required.
This dimension data is based on ANSI / ASME B16.5-2020.
Blind Flange 2″ Class 600 Dimensions
- Reference Standard: ANSI / ASME B16.5
- Nominal Pipe Size (NPS): 2″
- DN Size: DN50
- Flange Thickness: 25.4mm
- Weight: 4.6kg
- Stud Bolt Size: 5/8″ UNC (or M16) x 110 Long
- Number of Bolts: 8
- Hole Diameter: 3/4″ (19.05mm)
What Is a Blind Flange?
A blind flange is a blank flange used to close the end of a pipeline, vessel nozzle, or equipment connection. It provides a secure shutoff point and is often selected when future maintenance, inspection, or line extension may be required.
Common Applications
Blind Flange 2″ Class 600 is commonly used for:
- Pipe end closure
- Equipment isolation
- Valve and nozzle blanking
- Maintenance shutdown work
- Process and utility piping systems
- Higher pressure piping applications
CAD Drawing Download
This page includes the CAD drawing file for Blind Flange 2″ Class 600, which can be used for drafting, detailing, and piping layout coordination.
Available Blind Flange Class 600 Sizes
This size is part of the Blind Flange Class 600 series. Check other sizes in the same category to find matching dimension data and CAD files for your project.
Notes
Before fabrication or installation, always confirm the latest project requirements, flange material specification, gasket type, bolt length, and applicable pressure-temperature rating.
How to Read the Blind Flange Reference Data
The listed NPS and DN designations identify the nominal pipe size using two common naming systems. They are reference designations, not direct measurements of every flange feature. The dimensional values in the original content should be used together with the applicable flange standard, project drawings, and material requirements.
Class designation and pressure checks
Class 600 is a flange pressure-class designation, not a universal pressure value that applies in every condition. The allowable rating can depend on material, temperature, gasket selection, bolting, and the governing design specification. Confirm the pressure-temperature requirements before fabrication or installation.
Bolting and gasket coordination
The source data identifies the stud bolt size, bolt count, bolt-hole diameter, and listed bolt length. These details must be coordinated with the mating flange, gasket, washers where specified, thread engagement, flange facing, and the actual joint stack-up. Bolt length should not be changed solely from a nominal drawing dimension without checking the assembled connection.
Drafting and CAD workflow
The downloadable DWG can support piping layouts, equipment-nozzle coordination, fabrication drawings, and general arrangement work. Treat the CAD file as a drafting reference and verify connection details against the project specification and the applicable flange standard before issuing fabrication documents.
Related reference topics
- Blind flange dimensions and weight references
- Flange pressure classes and material selection
- Pipe schedules and nominal pipe size terminology
- Flange bolting, gasket selection, and joint assembly
- Piping CAD and DWG download resources
Blind Flange 2 Inch Class 600 FAQ
What is the purpose of a blind flange?
A blind flange closes the end of a pipe, vessel nozzle, valve connection, or equipment opening. It can provide a removable isolation point for maintenance, inspection, blanking, or a possible future connection.
Does a blind flange have a center bore?
No. A blind flange is solid across its central area. It uses the flange joint and gasket arrangement to seal the connected opening.
What does Class 600 identify?
Class 600 identifies the flange pressure class used for specification and selection. It does not by itself provide one pressure limit for all materials and temperatures, so the applicable rating must be confirmed from the project requirements.
Can the listed stud bolts be used for every installation?
The listed stud bolt information is part of this reference data, but final bolting must be checked against the mating flange, gasket, washers, thread engagement, material specification, and assembled joint thickness.
Is the DWG file suitable for fabrication without checking?
No. The DWG is intended to support drafting and coordination. Verify dimensions, flange facing, material, tolerances, and project-specific requirements before using it for fabrication or installation.